Continuous Positive Airway Pressure (CPAP) Ventilation Using a Novel Full-Face Mask Versus Conventional Helmet

The aim of this study is to compare two methods of delivery of noninvasive mechanical ventilation (NIV). Since patient compliance and mechanical characteristics of the delivery devices are two fundamental variables in the success of NIV during acute respiratory failure, our hypothesis is that an improved patient-ventilator interface may improve the efficacy of therapy.